U.S. Army official who supervised contracts at the Army Corps of Engineers, was demoted in August. Long considered a stellar employee who earned high performance reviews, Greenhouse began receiving negative feedback in 2003, when she questioned why Kellogg Brown & Root, a subsidiary of Halliburton, won $7 billion in no-bid contracts and other preferential treatment for work in Iraq. Vice President Dick Cheney headed Halliburton before being elected vice president. Testifying before a congressional committee, Greenhouse said one of the contracts was “the most blatant and improper contract abuse I have witnessed during the course of my professional career.”